SN74LVCH245ADGVR

Overview

Category: Integrated Circuit (IC)

Use: Level Shifter/Transceiver

Characteristics: - Low-voltage CMOS technology - Bidirectional voltage level translation - 3-state outputs - High-speed operation - Wide operating voltage range - ESD protection - Small package size

Package: TSSOP-20

Essence: The SN74LVCH245ADGVR is a level shifter/transceiver IC that allows bidirectional voltage level translation between different logic levels. It is commonly used in electronic systems where signals need to be translated between different voltage domains.

Packaging/Quantity: The SN74LVCH245ADGVR is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Voltage Levels: 1.8V, 2.5V, 3.3V, and 5V
• Input/Output Compatibility: TTL, CMOS
• Maximum Data Rate: 100 Mbps
• Number of Channels: 8
• Output Drive Capability: ±24 mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The SN74LVCH245ADGVR has a TSSOP-20 package with the following pin configuration:

┌───┬───┐ A1 -|1 └─ 20|- VCC B1 -|2 19|- OE# A2 -|3 18|- B7 B2 -|4 17|- A7 A3 -|5 16|- B6 B3 -|6 15|- A6 A4 -|7 14|- B5 B4 -|8 13|- A5 GND -|9 12|- B5 OE -|10 11|- A8 └───────┘

Functional Features

• Bidirectional voltage level translation between different logic levels.
• 3-state outputs allow multiple devices to share a common bus.
• High-speed operation enables fast data transfer.
• ESD protection safeguards against electrostatic discharge.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various systems. - Small package size saves board space. - Bidirectional functionality simplifies circuit design. - High-speed operation enhances system performance.

Disadvantages: - Limited number of channels (8) may not be sufficient for complex applications. - Requires careful consideration of input/output voltage compatibility.

Working Principles

The SN74LVCH245ADGVR operates by using a combination of CMOS technology and level shifting techniques. It translates signals between different voltage domains, allowing seamless communication between devices operating at different logic levels. The bidirectional functionality enables data transmission in both directions, while the 3-state outputs facilitate bus sharing among multiple devices.

Detailed Application Field Plans

The SN74LVCH245ADGVR finds applications in various fields, including:

1. Embedded Systems: Used for voltage level translation between microcontrollers and peripheral devices.
2. Communication Systems: Facilitates signal translation between different communication protocols and voltage levels.
3. Industrial Automation: Enables interfacing between different control systems operating at different voltage levels.
4. Consumer Electronics: Used in devices where different components operate at different logic levels, such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar functionality with a different package (SOIC-20).
2. SN74LVCH16245A: 16-channel bidirectional level shifter/transceiver.
3. SN74LVC1T45: Single-channel level shifter for bi-directional voltage translation.

These alternative models offer similar features and can be considered as substitutes depending on specific requirements.

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